EP 0506229 A1 19920930 - Silver halide photographic materials.
Title (en)
Silver halide photographic materials.
Title (de)
Photographische Silberhalogenidmaterialen.
Title (fr)
Matériaux photographiques à halogénure d'argent.
Publication
Application
Priority
JP 6193191 A 19910326
Abstract (en)
The improved silver halide photographic material is provided which contains a compound of the general formula (I): <CHEM> wherein R1 and R2 each represents a hydrogen atom, an alkyl group, an aryl group, an alkenyl group or a heterocyclic group; Z1 and Z2 each represents a non-metallic atomic group necessary for forming a 5- to 7-membered ring; X1 and X2 each represents an oxygen atom, a sulfur atom or =N-R3; R3 is a hydrogen atom, an alkyl group, an aryl group, an alkenyl group, a heterocyclic group or -OR4; R4 represents a hydrogen atom, an alkyl group, an aryl group, an alkenyl group or a heterocyclic group; L1 - L5 each represents a methine group; and n1 and n2 each represents an integer of 0, 1 or 2.
IPC 1-7
IPC 8 full level
C09B 23/02 (2006.01); G03C 1/83 (2006.01)
CPC (source: EP US)
C09B 23/02 (2013.01 - EP US); G03C 1/832 (2013.01 - EP US)
Citation (search report)
- [AD] EP 0361949 A2 19900404 - KONISHIROKU PHOTO IND [JP]
- [AD] US 4833246 A 19890523 - ADACHI KEIICHI [JP], et al
- [A] PATENT ABSTRACTS OF JAPAN vol. 8, no. 137 (P-282)(1574) 26 June 1984 & JP-A-59 038 742 ( KONISHIROKU SHASHIN KOGYO KK ) 2 March 1984
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0506229 A1 19920930; JP H04296747 A 19921021; US 5204236 A 19930420
DOCDB simple family (application)
EP 92301498 A 19920224; JP 6193191 A 19910326; US 84248192 A 19920227